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Research on Personal Information Exchange System for Communication Terminal and Its Application

Author: WenJianFen
Tutor: HeJiaMing；ZengXingBin
School: Ningbo University
Course: Communication and Information System
Keywords: Information exchange Cloud Computing P2P Multi-threaded download AT command
CLC: TP393.09
Type: Master's thesis
Year: 2011
Downloads: 56
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Abstract


Information exchange is one of the most important applications of Internet technology , the existing interactive technologies can be divided into remote interaction and local interaction , information retrieval , Download remote interaction research focus . Local interaction data interaction techniques based on the AT command to get the majority of the attention . From the mass of information quickly and efficiently retrieve the information needed by the user , how to achieve load balancing of network resources to download , as well as how to achieve fast interactive data under the AT command , has important research significance . Therefore , the subject of in-depth research of cloud-based document search technology , P2P network resources multithreaded transfer improved mechanisms to achieve the data based on the AT command interactive mode . Thesis innovations are as follows : 1 . Existing document retrieval technology in data processing speed is slow, unsatisfactory recall and precision rough classification method proposed two-tier MapReduce document . The method utilizes the powerful parallel processing capabilities, cloud computing under the MapReduce framework document quickly points to crude class , thereby increasing the document retrieval recall and precision rates . ADSL the network uplink / downlink bandwidth of P2P network uplink / downlink limit to the number of nodes in a single problem and the existing multi- thread download technology resource node allocation , proposed sliding window data block dynamically adjust strategy and resources node adaptive selection strategy . Wherein the sliding window data block dynamic allocation strategy to solve the problem of low ADSL downlink bandwidth utilization , and to avoid the the node overload caused invalid data request . Adaptive resource node selection strategy to solve the node allocation average , a single problem , and further optimize resource download environment , balanced node load , improve transmission efficiency . 3 different specifications for different mobile terminal platform support AT commands , AT command data presented in this paper interact AT commands to save a configuration file in the background . This AT command just change the configuration file to meet the demand for the different mobile terminal data interaction , modify greatly reduced workload .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network
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